問題詳情：
Rene Laennec was a French doctor who learned to tap on people’s chests to find out illness from an Austrian doctor named Leopold a boy，Leopold used to tap wine___41___(contain) in his father’s inn to see how much wine they held.A full one made___42___different sound from an empty he became a doctor，he ___43___ (tap) people’s chests to see how much liquid was in their nec did the same and learned to tell by tapping carefully on a chest ___44___it was diseased or he was even more interested ___45___diseases of the heart，and he wished that he could hear heartbeats those days，a doctor would place his head on a patient’s chest to listen，but if the patient was___46___ (extreme) fat it was impossible to hear any heartbeat at all.
One day when Laennec ___47___ (walk) in the park，he saw some girls playing with a see-saw(蹺蹺板) of them scratched the end of the board while the others placed their ears against the other walking up，the doctor was asked why the sounds travelled along the wood.“The sounds are magnified(放大)，girls，er…”Suddenly he turned and rushed back to the kly___48___ (take) some thick paper，he rolled it up like a tube and began listening to patients’ heard the heartbeats and ___49___ (they) breathing nec soon made a better instrument of wood，one he called a stethoscope(聽診器)r，they ___50___ (make) of steel and rubber.
【回答】
41. containers
42. a 43. tapped
44. whether
45. in 46. extremely
47. was walking
48. taking 49. their
50. were made
知識點：語法填空
題型：未分類
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